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8 Fascinating facts about body temperature

13
Apr
2021

You think you know the average "normal" body temperature? The temperature at which the fever rises? This temporary triviality may surprise you.

Your body temperature is always adapting to your environment, and what is "normal" to you may not be what is normal for someone else.Your body temperature can reveal a lot about your health. Body temperature is one of the four main vital signs that doctors observe. An infection can cause fever, but your body temperature is also according to your age, your gender, and even when you tell a lie. Let's learn more about normal body temperature, fevers, and  other factors that affect body heat.

1- What is considered a Normal Body Temperature?
The average normal body temperature is generally considered 37º  C. But the "normal" body temperature can range from 36.1º  C to 37.2º  C, and what is normal for you can be a little higher or lower than the average bodytemperature.
The body is always adapting its temperature in response to environmental conditions. For example, your body temperature increases when you exercise. And if you check your temperature with a thermometer, you'll see that it's higher in the late afternoon and evening than first thing in the morning when you get up.
Babies and young children have a higher body temperature than older children and adults because the surface of their body is larger in relation to their weight, and their metabolism is more active. Newborns typically have an average body temperature of 37.5º  C.

2 - What is a Fever?
A fever is a temporary increase in body temperature, and is often caused by disease. A rectal, ear, or temporal artery (forehead) temperature of 38º  C or higher usually indicates fever. Fevers usually subside within a few days. If you have a fever, you may also experience the following symptoms:

- Chills and tremors
- Transpiration
- Headache
Muscle pain
Loss of appetite
- Irritability
- dehydration
General weakness

For adults, a body temperature of 39.4º  C or higher may be cause for concern, and justifies a call to your doctor. Also call your doctor if, together with a fever, you have a severe headache; an unusual rash; unusual sensitivity to bright light; stiff neck and pain when tilting the head forward; mental confusion; persistent vomiting; difficulty breathing or chest pain; abdominal pain or pain when urinating; convulsions or seizures.
For infants and young children, a temperature only slightly higher than normal could be a sign of severe infection. Call your doctor if your child is under 3 months and has a rectal temperature of 38 ºC or higher; between 3 and 6 months and has a rectal temperature up to 38.8º C and appears untypically irritableor uncomfortable, or has a temperature higher than 38.8º  C; or between 6 and 24 months and has a rectal temperature greater than  38.8º  C that lasts longer than a day.
If your child is 2 years of age or older, call your doctor if you have a fever that lasts more than three days, or if you think you do not react.
Young children from 6 months to 5 years of age may have febrile seizures with a high body temperature, which typically involve loss of consciousness and tremors of limbs on both sides of the body. Ask for emergency medical attention if a seizure lasts more than five minutes, or take your child to the doctor as soon as possible after the seizure to find out what caused it.

3 - A fever can help you fight an infection
Most people worry about fever, but in reality it can be helpful. Several over-the-call medications can lower fever, but sometimes it is better to leave you untreated. This isbecause fever seems to play an important role in combating infections. Still, your doctor may prescribe an antibiotic if you suspect a bacterial infection, such as pneumonia or streptococci in your throat.

4 –  The older the average body temperature?
If you feel you're always cold, even during the daysof summer, it may be your age. Studies show that as we age, our average body temperature drops slightly. A study published  in the Journal of Clinical Nursing,which measured the body temperature of 133 nursing home residents, found that body temperature was lower than average inpeople aged 65 to 74; even lower in people aged 75 to 84; and lower among people over 85, some of whom had a low body temperature of 34.16degrees  C under normal circumstances. This is important to know, because the elderly may in fact have fever at lower temperatures than younger adults.

5 - Men and women have different body temperatures
There may actually be something in the saying "cold hands, warm heart." In a study published by researchers at the University of Utah    in Salt Lake City, they found that women's core body temperature is on average 0.3 degrees higher than that of men(36.6degrees C vs.   36.3º C). But women's hands  are 1.6ºC  colder than men on average  –  30.6º  C, compared to 32.2ºC  for men.

6 -  Dizer alie  can change your body temperature?
The fibers won't grow your nose, but they'll make you colder. Despite this discrepancy with the history of older children, researchers at the University of Granada in Spain have dubbed their findings the "Pinocchioeffect". In   a study published in April 2018  in the Journal of Investigative Psychology and Offender Profiling,they used thermal imaging to demonstrate that anxiety caused by a lie causes the temperature ofthe nose to decrease and the areas around the forehead to increase.

7 - A cold heart can protect the brain
Therapeutic hypothermia is a type of treatment sometimes used for people who have cardiac arrest (when the heart stops suddenlybeating). When the heart starts beating again, health care providers use cooling devices to lower the patient's body temperature to about 31.6°C to  33.8°C. Lowering body temperature right after cardiac arrest can reduce brain damage, and increases the chances of the person recovering.

8- Body temperature can help identify the time of death
When people die, they no longer produce body heat, and the body slowly cools down. This process is called mortis algorithm. The mortis  algorithm has been used as a tool in forensic investigations to estimate when he died after the body was discovered. But there  are several factors that  affect body temperature, so it is not a fully reliable or accurate technique.

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